Bunch builder for spinning machines



J.\L BFFDVVN BUNCH BUILDER FOR SPINNING MACHINES Jan. 26 1926.

Filed May 16, 1925 2 Sheets-Sheet 1 Jan. 26 1926. 1,571,155

J. v. BROWN BUNCH BUILDER FOR SPINNING MACHINES Filed May 16, 1925 2 Sheets-Sheet 2 Patented Jan. 26, 1926.

UNITED STATES PATENT OFFICE.

JAMES V. BROWN, OF ERLANGER, NORTH CAROLINA, ASSIGNOR TO H. 86 B. AMERICAN MACHINE COMPANY, OF PAWTUCKET, RHODE ISLAND.

BUNCH BUILDER FOR SPINNING MACHINES.

To all whom it may concern:

Be it known that I, JAMEs V. BROWN, a

citizen of the United States, residing at r the art as the bunch, prior to commencement of the spinning of the yarn.

In automatic looms, the teeler is employed to determine when the bobbin or shuttle is to be renewed. This feeler passes through a hole in the side of the shuttle and contacts with the yarn on the bobbin. It the bobbin is built without the bunch, the uncertainty exists of the bobbin traversing the loom length and laying a completefilling, therefore the bunch on the bobbin is provided so as to prov de suflicient yarn for the latter purpose.

The primary object of the present invention is therefore to provide means for building a bunch on the bobbin and furthcr to provide simple, and economical.

means for the purpose which is effective in operation.

In the drawings:

Figure 1 is a fragmentary side elevation, partly in section, of the invention; and

Figures 2 and 8 are enlarged detail views in side elevation, illustrating the parts in different positions, 7

In proceeding in accordance with the present invention, a shaft 1, equipped with a gear 2, forming a part of a common form of builder motion is employed. The present invention resides in the provision of a segmental gear 3 mounted on the shaft 1 with its teeth in overlying relation to the teeth 01: the gear 3. The segmental gear is provided with a series of holes 4 into one of which a stud 5 is secured, the location of the stud in a selected one of the holes 4 being determined by the degree of bunch to be laid upon the bobbin. When the bobbin is full, or otherwise stated, when the predetermined amount of yarn has been spun on the bobbin, the spinning machine will be stopped and the bobbin dotted, as will be now described.

In the process of stopping the machine, the operator by means of the usual foot treadle 7, lifts the worm 6 upwardly out of engagement with the gear 2, the treadle being connected to the usual mechanism crank 8 for effecting raising of the worm through its shaft 9. The segmental gear 3 is provided with a rigid arm 10 to the outer end of: which a weight 11 is secured. A bracket 12 attached to the frame of the machine is provided with an adjustable stop 13 disposed in the path of movement of the weighted end of the segmental gear 3 so as p to stop movement of the segmental gear 3 upon movement thereof under the influence of the weight 11. As depicted in Figure 2 the segmental gear 3 is held against turning movement on the shaft 1 by engagement of its edge lt with an end of worm 6. Therefore, upon raising of the Worm following depression of the treadle to disengage the worm from gear 2, the segmental gear 5 will also be released and under the influence of its weight 11 will move in the direction of the stop 13 until its pin 5 is engaged with and arrested by the stop.

Upon release of the treadle, the worm 6 will move downwardly under the influence of gravity exerted upon its customary weight 15 causing the worm teeth to mesh with the teeth of the segment 3 and thereby el'l ecting movement of the segmental gear until the latter reaches the position depicted in Figure 1, of the drawings, whereupon the worm being relieved of the support contributed .by the segmental gear, gravitates to engage the gear 2 and meshing with the teeth thereof effects driving of the gear and consequent building of the yarn on the bobbin under control of the builder motion as is common to such structures.

During the time that the worm is in mesh with the segmental gear the shaft 1 is permitted to idle and the bunch is wound or spun upon the bobbin and immediately up on the segmental gear passing beyond the worm, the building operation occurs by driving of the shaft by the gear 2.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In combination with the vertically movable worm and the gear of the bunch builder of a spinning machine, a toothed segment mounted on the gear shaft and having its teeth overlying the gear teeth and formed to mesh with the worm, a weight connected to the segment, a stop connected to the frame of the machine, and a stud adjustably carried by the segment and engageable with the stop. a

2. In combination with the vertically movable worm and the gearof the bunch builder of a spinning machine, a toothed segment mounted on the gear shaft and having its teeth overlying the gear teeth and formed to mesh with the worm, means to tension the segment, a stop connected to the frame of the machine, and adjustable means on the segment engageable with the stop.

3. In combination with the vertically movable worm and the gear of the bunch builder of a spinning machine, a segmental gear pivoted on the shaft of the first named gear formed to have its teeth mesh with the worm for driving thereby, means to tension the segmental gear to move same to register with the worm for driving thereby upon raising and subsequent lowering of the worm, and means to stop said segmental gear in its said movement to register with the worm.

4. In combination with the vertically movable worm and the gear of the bunch builder of a spinning machine, means loosely mounted on the gear shaft and movable into and out of register with the worm for driving thereby upon raising and subsequent lowering of the worm whereby to enable the gear shaft to idle throughout the time said means engages the worm.

5. In combination with the vertically movable worm and the gear of the bunch builder of a spinning machine, means connected to the gear shaft and movable into and out of register with the worm from driving thereby upon raising and subsequent lowering of the worm, whereby to enable the gear shaft to idle throughout the time said means engages the worm, and means to predetermine the extent of idling of the gear shaft.

(5. In combination with the vertically movable wormand the gear of the bunch builder of a spinning machine, a segmental gear pivoted 011 the shaft of the first named gear and formed to have its teeth mesh with the worm for driving thereby, means to tension the segmental gear to move same to register with the worm and means to set the first means to predetern'iine the extent of movement thereof by the worm.

7. In combination with the gear of the bunch builder of a spinning machine and a vertically movable worm for driving the gear, means engageable with the worm and overlying the gear teeth for blocking-out a predetermined number of the teeth of the gear so as to permit the latter to idle throughout the engagement of the worm with said means. I

8. In combination with the gear of the bunch builder of a spinning machine and a vertically movable worm for driving the gear, tensioned means having teeth to engage the worm held inoperative by the worm during engagement of the latter with the gear, and means whereby upon raising of the worm and thereby release of the tensioned means to arrest movement of the tensioned means in a predetermined position and to position same for engagement of its teeth with the worm upon lowering of the latter.

9. In combination with the gear of the bunch builder of a spinning machine and a vertically movable worm for driving the gear, means having teeth extending beyond the gear teeth to engage the worm upon raising and subsequent lowering of the worm, means whereby to hold the first means normally inoperative and means to move the first means in operative relation to the worm upon raising of thelatter.

10. In combination with the vertically movablev worm and the gear of the bunch builder of a spinning machine, a pivoted segmental gear formed to have its teeth mesh with the worm for driving thereby, means to tension the segmental gear to move same to register with the worm for driving thereby upon raising and subsequent lowering of the worm, and means to stop said segmental gear in its said movement to register with the worm.

11. In combination with the gear of the bunch builder of a spinning machine and a vertically movable worm for driving the gear, means having teeth to engage the worm, said means being normally held inoperative by the worm when the latter is engaged with the gear, means whereby to more said means to a predetermined position in register with the worm upon raising of the latter, said first means upon engagement with the worm being moved thereby to .its normal position and being formed to permit the worm to automatically engage the gear upon reaching its said normal position.

In testimony whereof I have signed my name to this specification.

J. v. BROWN. 

